Ive got some sick clunking going on in my car and i have the funds and time to change all the bushings. So, I was wondering...

If i buy the drag launch kit from rx7.com what i still have to replace ALL the bushings or just the remaining ones? Does that makes sense? Drag launch kit

If i only have to replace the remaining ones where can i find them separated like i need them. If not, what bushing set do you guys recommend?

Thanks,
Tom

PS Is the Launch kit worth it?

 

You'd only have to replace the (I think 2) remaining pillow *****, the toe links and trailing arms will have new ones in them. Do a search, I'm sure you can find diagrams with the part numbers.

 

ttt

 

There are currently two different types of bushings for sale in the Group Buy section of the forum right now. Rob is selling Polyurethane bushings and I am selling Delrin bushings. Each of them are geared for the more spirited driving crowd. For stock bushings I'd suggest giving Ray Crowe a call, he typically has great prices for RX7 Club members. He can be reached at Malloy Mazda, 1-888-533-3400. Ray can sell you each bushing individually if you like. There is also MazdaTrix out here on the West coast.

http://www.mazdatrix.com/h93-95c.htm

Chances are you need pillow ball bushings. Take some time and do some searches on those bushings first.

Good luck whatever you find.

 

A launch kit will be effective for straight line driving (since it will reduce the amount of play in the rear suspension linkages causing a toe-in condition when launching); however, it will not completely address cornering issues associated with the high mileage rubber OEM bushings on your car. If you want to improve the way your car behaves on the road/track and elimanate the slop in your suspension you should also replace your Pillow ball bushings and front bushings (even the steering rack mount if you want to go all-out).



The RX7 Store's launch kit will do what it advertises; however, keep in mind that it does not include pillowballs so you will still need to get all 8 of those (six small PBs and one large PB suspended in rubber) from Mazda since they are not available through the aftermarket). In my (ofcourse slightly biased ;o)opinion, you would be best served just purchasing a set of hem link style toe links and trailing arms as shown above and save a little cash by purchasing differential bushings elsewhere.

You can address clunking, binding and end play by replacing your 6 small pillowballs and lower arm inner bushings (pillowballs suspended in rubber) then replace your rubber OEM bushings to improve the feel and accuracy (through decreasing deflection and compression) of your suspension.

Almost all of these bushings (excluding the toe links and steering rack mounts) can be purchased from Steve in Delrin so you really do have plenty of options.

You may find the following diagram helpful, though it only lists my SuperPro (Polyurethane) PNs:



Good luck with your search,
Rob